The formula can be written in the form ...
... T = (original temperature) + x·(change in temperature each minute)
The problem statement gives you the original temperature (21 °C) and tells you the temperature after 12 minutes. You have to use that information to figure out the change in temperature each minute.
The change in temperature in 12 minutes is (75 °C) - (21 °C) = 54 °C. That is the change in 12 minutes, so the change in 1 minute will be 1/12 of that:
... 54/12 = 4.5
Using this value in the equation for T, we have
... T = 21 + 4.5x
Answer:
Option C is correct
Step-by-step explanation:
In this question, we are asked to select which of the options have the same value as 7/3
We examine the options one urge other.
Option A
9/49; This is wrong as it cannot be divided further to yield while multiples
Option B
18/42; Dividing through by 6 will yield 3/7 which is not same as 7/3; This makes this option wrong too
Option C
42/18; dividing through by 6 will yield 7/3 which makes this option correct
Option D
49/9; This is a dead end as it cannot be divided further to give whole number multiples
42 I think I’m not really sure
Answer:
40 degrees
Step-by-step explanation:
2x-30+x=90
Then you add x to 2x which will be 3x so now its
3x-30=90
add 30 to both sides
3x=120
divide 3 from both sides
x=40
Since Angle QPR is virticle to 2x-30+x=90
Angle QPR is 40 degrees
I got you bro go to sleep g
Answer:
The answer is c
Step-by-step explanation:
